兩人份自助午餐，謝謝。

Two for the lunch buffet, please.

Source: Tatoeba

Sentence Composition

=1 兩 liǎng
  1. two
  2. both
  3. some
  4. a few
  5. tael, unit of weight equal to 50 grams (modern) or 1⁄16 of a catty 斤 jīn (old)
=1 兩 liàng Original form of 輛／辆 (liàng).
2 人 rén person; people

classifiers: 個, 位
3 份 fèn
  1. classifier for gifts, newspaper, magazine, papers, reports, contracts etc
  2. variant of 分 fèn
4 自助 zìzhù self-service
5 午餐 wǔcān
  1. lunch
  2. luncheon

classifiers: 份, 頓, 次
6 謝謝 xièxie
  1. to thank
  2. thanks
  3. thank you